Form clamp



Jan. 29, 1952 H. P. NEPTUNE FORM CLAMP Filed Nov. 25, 1949 m N INVEN TOR, dwm/rfi/Vmm/m Patented Jan. 29, 1952 UNITED STATES FATENT OFFICE? 2,583,962

FORM CLAMP Herman P. Neptune, Los Angeles, Calif. Application November 25, 1949, Serial No. 129,399

2 Claims.

The present invention relates to form clamps of a type which may be utilized for concrete wall construction. As is generally known, concrete walls are poured between form boards, the boards in turn being held by studs and wales. such a construction usually requires skilled artisans who must secure the boards, studs and wales in working relationship, by some means such as nails. Ordinarily, spacers are utilized between pairsof form boards for spacin the boards apart.

The present invention is directed to a type of form clamp wherein the necessity of utilizing nails to secure the form boards, studs and wales together is eliminated.

A further object is the provision of a form clamp so constructed and arranged as to effectively do away with the necessity of providing spacers between the form boards, and wherein the spacing between the form boards may be regulated externally of the boards.

External regulation of spacing between the two forms is such that no particular attention need be paid to the spacing during erection of the forms, the spacing being fully regulated after such erection, and in a manner that assures that the said forms are correctly and accurately spaced apart.

A further object is a form clamp for concrete pouring forms which eliminates many devices generally utilized in concrete form construction.

A further object is the provision of a form clamp which is readily removed from the form after it has performed its function.

Other objects of the invention will appear as the specification proceeds.

In the drawing:

Figure 1 is a transverse vertical sectional view of a concrete pouring form incorporating the invention;

Figure 2 is a view similar to that of Figure 1, the form clamp of the invention in the act of being turned by a brace to space the pourin forms; and

Figure 3 is a fragmentary detail showing the brace in moved position from that of Figure 2.

Referring now to the drawing, I utilize in conjunction with the present invention a concrete pouring form of some type which may include pairs of form boards I, studs 2 on the outer faces 7 of said boards, and wales 3 for backing the studs. It is general practice to provide two spaced apart wales, as shown in the drawing, and I am assuming that the forms are being erected.

The invention includes an elongated tie rod 4 which extends through bores 5 and B in the form 2 boards, between pairs of studs, or at one side of a stud where a single stud is utilized, and between pairs of wales, as shown. Both ends of the tie rod 4 are screw threaded, as shown at I and 8 and carried at both ends of said tie rods and on said screw threads are means 9 and I0. As the said means is identical, one will be described.

The means 9 includes a plate II formed with one or more transverse bores I2 whereby the said plate may be secured by one or more nails or screws I3 in a position bridging a pair of wales 3. The said plate is provided withan open ended socket I4 within which is positioned a semispherical member I5, which member has integrally formed therewith, a nut I6. The semispherical member is axially bored for passage therethrough of the screw threaded area of the tie rod 4, the threads of the nut I6 engaging the threads of said tie rod. Each end of the tie rod is provided with a longitudinal groove I! which intersects the screw threads I and 8. A complementary groove is provided in each nut andsemi-spherical member, whereby in certain instances a pin I8 may be received between said grooves for locking the nut against rotation on the screw threads. The plate I I is provided with a transverse bore [9, Figure 1, through which is passed an elongated lag screw 20, which lag screw is passed between the pair of wales, between the studs or at one side thereof and embedded in a form board I, see Figure 1. These lag screws are of a length which will permit the wales and studs to be interposed between the plate II and the form boards I without passing completely through the form boards. Such an assemblage will hold the members together without the necessity of utilizin the nails I3 although in certain installations, it may be found advisable to utilize nails.

I have provided a brace 2| shown in fragment, which brace is utilized for the purpose of turning one of the nuts I6 to adjust the spacing between the form boards. The brace includes a threaded end 22, the threads of which are interrupted by a longitudinally flattened area 23=and carried on said threads is a socket member 24. The socket member includes a head 25 for receiving the flattened sides of the nut IS. The socket member 24 is elongated in form and terminates in a portion 26, which is screw threadedfor rotation on the screw threads 22. A headed screw 21 is transversely passed through portion 26 for engagement with the longitudinal flattened area 23.

The operation, uses and advantages of the invention just described are as follows:

further movement of the nut.

i assume that the concrete forms are being erected and during such erection, the wales and studs are placed against the form boards to provide pairs thereof between which form boards is to be poured the concrete. The workmen assem- V ble uniform length tie rods 4, of which there may be a plurality, in such a manner as to have the V V platemembers ll engage the outer surfaces of the wales with the said plates, wales, studs and form boards"secured together by the lag screws 20. After agiven'assemblage, the workmen by having knowledge of the length of the tie members 4 and the spacing which is to exist between the form boards to regulate wall thickness, ad.-

justs the socket member 2% on the threads 22 and then locks the same against any turning-movement by bringing the screw 21 into engagement with the flattened area 23. The socket 251eceives the nut l6 and rotation of the brace, will cause the nut to travel on the screw threads 1 in the-manner illustratedin Figures 2 and 3. In other words, whenthe nut is rotated, .it will'travel along the screw threads of the tie rod and finally escape from the socket 25,.as shown in Figure 3. Obviously,'turning of the brace will produce no 7 7 As the opposite end of -the tie rod has been secured against movement by the pin it positioned between the longitudinal groovesof the tie rod and nut, the en-' for eachform-board of said pair, of means for Sometimes the workman desires to nail the sheating to the studs, in which event a short lag screw is used, as shown in'Fig. 1 at 28.

I claim:

V 1; The combination with a concrete form, having a form board and a backing of studs and wales, of means for securing said form board, studs and wales in working relationship, comprising a plate for engagement with the wales and anf enlongated 1ag s'crew* extending-between said'plate, wales*-and studsandembedded in part in said form board.

7 2. The combination with a concrete form having-a-pair of form boards between which concrete isto be poured, and a backing of studs and wales each form board for securing the form board, studs and'wale'sdnworking relationship, comprising a't'plate for engagement with the wales, an elongated lag screw extending between said plate, wales and studs andimbedded in part in the formboard,-- and a; ti rod extending between the-pair ofplates and means cooperating with the-tie rod and the plates to move one of said for-mboards; Y I

- HERMAN P. NEPTUNE.

PREFERE C S CITED The:followingreferences are of record in the 2,168,714 Neptune rl Au 8, 1939 

